King Street West between James and MacNab will be reduced to one lane for much of Sunday, a closure that the city expects will cause “significant delays.”

The restrictions will be in effect starting at 7 a.m. and are set to last until 7 p.m.

“There will be significant delays during this time,” the city said in a Friday news release.

The closure will allow for a large crane to hoist cooling units onto nearby high-rises.

Police officers will be present to help direct the flow of the traffic.